Yo mama so Gamist, Wink Martindale left the last session crying.Yo mama so Sim, Stephen King has nightmares when they play Call of Cthulu. Yo mama so Sim, Donald Rumsfeld started videotaping their Twilight 2000 games for inspiration.Yo mama so Nar, Steven Speilberg keeps trying to get rights to her gaming sessions.

Now, resolution mechanics:

Yo mama so ugly, she she done spent her whole karma pool to get an NPC sailor in bed.Yo mama so fat, she keeps rolling everyone else's dice with the flab on her arms.Yo mama so dumb, she won the right to narrate any outcome and killed her whole party.

Relating mama to different games:

Yo mama smell so funky, no Garou would touch her.Yo mama so old, some Ventrue dropped to his knees to pay her proper respect.Yo mama so fat, we had to leave her in the dungeon when she got knocked out. All seven of the rest of us didn't have the encumberance to drag her butt out.Yo mama so fat, when she falls on someone she does MegaDamage.Yo mama so sweaty, her touch does MegaDamage to vampires.Yo mama so dumb, gully dwarves taught her to count.Yo mama so clumsy, she hurt herself just searching for a trap to disarm.Yo mama so ugly, her alley cat totem hisses at her.Yo mama such a slob, her rat totem chose her for the crumbs.Yo mama so crazy, some Malkavians tried to have her committed. Yo mama so mean, she sent a Brujah home crying.Yo mama so slutty, she has +12 save vs. STDs.Yo mama so pretentious, Toreadors make fun of her art.Yo mama so fast, she uses celerity to get undressed.Yo mama so easy, every guy in the world may as well have 18 Charisma.Yo mama so easy, it's a target number of 2 on any social skill to lay her -- and that's just because all ones would be a botch.Yo mama so fat, she gives any vehicle she's in a -5 to its manuever rating.Yo mama so hairy, it takes two dice to tell she's not a Wookie.Yo mama so hairy, she gets an AC of 4 from the extra effort it takes to cut through it all.

And some general ones:

Yo mama so dumb, she attacked a gazebo. Yo mama so short, she needs a spear to hit someone in the same hex.Yo mama so gassy, I summoned a fire elemental just to follow her around.Yo mama so cross-eyed, a mage tried to cast a blinding spell on her and ended up blinding everyone in the room but her.Yo mama so fat, someone's gotta hit her with a boffer weapon three times for it to count or it'd be too easy.Yo mama so dumb, she tells her opponent which R/P/S choice she's going to make ahead of time so they don't choose the same one.